Problems with Var. Bucket Consumpt. field in PPMs

[Former Member]

Hi experts,

I'm trying to manually create a PPM (Production Process Model) into APO (to use it with SNP), however, the value entered in the

Bucket Consumption (Variable) field disappears when I active the PPM. Someone could tell me what I am doing wrong?

First, I created a Resource ( using fields of tab 1 Bucket ) with the following data:

Resource

Resource: R

Category (Cat): P - Production

Location: L

Time Zone: BRAZIL

Bucket Dimensn: Mass

Factory Calendar: BR

Bucket Capacity: 96000

Unit: KT - Kilotonne

Number of Periods: 365

Period Type: Day

Days -: 1095

Days +: 1095

ie, a resource with a capacity of 96000 Kilotonne per year.

The PPM I'm trying to create is the following:

PPM's General Data

Use of a Plan: S - PPM for Supply Network Planning (SNP)

Variable (Single Level Costs): 980,00

PPM's Operations and Activities

Operation: 0010:Produce

Activity: 10:Produce

Components of Activity

Product		I/O Indicator	Consump. Type	From Date	To Date		Unit	Var. Consumptn
A		O		E		01.01.1970	31.12.9999	KT	1000
B		I		S		01.01.1970	31.12.9999	KT	560
C		I		S		01.01.1970	31.12.9999	KT	180
D		I		S		01.01.1970	31.12.9999	KT	260

Mode of Activity

Mode	Primary Resrce		Location	Unit	Fix. dur.
10	R			L		D	4

Resource Mode

Resource	Location	Unit	Var. Bucket Consumpt.
R		L		KT	1000 (here is the problem)

PPM's Model

Prod. Process Model	Output Product	Date From	Date To		Planning Locatn	Discretization	Maximum Lot Size
PPM_1			A		01.01.1970	31.12.9999	L		x		9999999

ie, a PPM to produce 1000 KT of A in 4 days that consumes 1000 KT of R resource capacity.

The value of 1000 KT in the field Var. Bucket Consumpt. is not allowed. I could only register values between 0 and 9.

Thanks in advance for help.

Greetings,

Francisco Fonseca.

Edited by: Francisco Fonseca on Jun 26, 2009 1:56 PM

Edited by: Francisco Fonseca on Jun 26, 2009 1:59 PM

[Former Member · Accepted solution]

HI,

Your variable bucket consumption must be in time units.

since your PPM is created for 1000 KT, you have to maintained the time taken to produce 1000KT in these variable bucket consumption.

Since you have mentioned that it takes 4 days to produce 1000KT, you have to maintain this duration in variable consumption in seconds (4243600).

I think this will solve the problem.

[Former Member]

Hi,

Its a good practice that when you make PPM manually keep fixed duration as '1 Day' (in your mode of activity).

One thing i noticed that you made your resource as bucket resource, which is correct,

but the number you mentioned there (Bucket Capacity: 96000) is not right. What is the unit? It should be in hours (should be 8 or 9 or ).

That means in One day the resource is capable of producing goods for 8/9/ Hours. So, make the change there.

Now in your Mode of activity make fix duration 1 Day.

Components of Activity

Product I/O Indicator Consump. Type From Date To Date Unit Var. Consumptn

A O E 01.01.1970 31.12.9999 KT 1000

B I S 01.01.1970 31.12.9999 KT 560

C I S 01.01.1970 31.12.9999 KT 180

D I S 01.01.1970 31.12.9999 KT 260

Mode of Activity

Mode Primary Resrce Location Unit Fix. dur.

10 R L D 1

Now in resource: put following value

Resource Mode

Resource Location Unit Var. Bucket Consumpt.

R L H 1

You will get an output as 8000 or 9000 (depending on your resource capacity per day, ie 8hr or 9 hr )

and if you put Variable consumption as 8/9 hrs the you will get 1000 KT per day, in that case you put variable material/product consumtion as 250 KT,

so you can get 1000 KT per four day. Variable resource consumption responsible for variable output (variable consumption of FG).

Pls revert if still there is any issue.

Thanks,

Satyajit

Edited by: Satyajit Patra on Jul 2

Edited by: Satyajit Patra on Jul 2, 2009 11:14 AM

[Former Member]

Thanks montuvg and Satyajit Patra.

In order to solve the problem, I had to change my Resource R and my PPMs:

- The resource was changed to work with time units instead of mass units;

- The PPMs' variable bucket consumption were changed from mass units to time units.